Ken Griffin Citadel Advisors
Ken Griffin founded Citadel, one of the world’s largest and most successful hedge funds. Starting his trading career from his Harvard dorm room at a young age, Griffin quickly developed a keen sense for markets and built Citadel into a global powerhouse with billions in assets under management. Known for his quantitative and technology-driven strategies, Griffin has also made headlines for significant philanthropic contributions, supporting causes in education, the arts, and public institutions. Over the years, he has earned recognition as one of the preeminent figures in modern finance.
Top Buys
| Rank | Stock | Value |
|---|---|---|
| 1 |
iShares Core S&P 500 ETF
IVV
|
+$9.91B |
| 2 |
SPCX
SpaceX
SPCX
|
+$871M |
| 3 |
Eli Lilly
LLY
|
+$719M |
| 4 |
Amazon
AMZN
|
+$698M |
| 5 |
Netflix
NFLX
|
+$627M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Micron Technology
MU
|
+$3B |
| 2 |
State Street SPDR Dow Jones Industrial Average ETF Trust
DIA
|
+$1.54B |
| 3 |
TSMC
TSM
|
+$1.42B |
| 4 |
NVIDIA
NVDA
|
+$1.41B |
| 5 |
SNDK
Sandisk
SNDK
|
+$771M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 3.92% |
| 2 | Healthcare | 2.55% |
| 3 | Industrials | 2.24% |
| 4 | Financials | 2.13% |
| 5 | Consumer Discretionary | 1.76% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
3376
Fidelity Investment Grade Securitized ETF
FSEC
$4.64B
| $11.1M | ﹤0.01% |
+252,534
| New | +$11.1M |
|
3377
CALL
Vanguard Total International Stock ETF
VXUS
$164B
| $11.1M | ﹤0.01% |
129,500
+15,000
| +13% | +$1.26M |
|
3378
PUT
iShares MSCI ACWI ETF
ACWI
$33.6B
| $11.1M | ﹤0.01% |
70,500
-74,200
| -51% | -$11.3M |
|
3379
CALL
Ametek
AME
$58.4B
| $11.1M | ﹤0.01% |
45,700
+10,800
| +31% | +$2.49M |
|
3380
CALL
XP
XP
$8.17B
| $11M | ﹤0.01% |
679,000
+210,600
| +45% | +$3.75M |
|
3381
PRA Group
PRAA
$776M
| $11M | ﹤0.01% |
581,087
+333,538
| +135% | +$5.93M |
|
3382
CALL
Herbalife
HLF
$1.29B
| $11M | ﹤0.01% |
838,200
-5,100
| -0.6% | -$70.3K |
|
|
BRUN
3383
CALL
Boost Run Inc
BRUN
$1.41B
| $11M | ﹤0.01% |
+283,800
| New | +$8.8M |
|
3384
Banco Macro
BMA
$4.96B
| $11M | ﹤0.01% |
118,764
+61,054
| +106% | +$5.01M |
|
3385
PUT
Saia
SAIA
$10.3B
| $11M | ﹤0.01% |
26,100
+7,600
| +41% | +$3.34M |
|
3386
PUT
Eldorado Gold
EGO
$10.4B
| $11M | ﹤0.01% |
352,800
+62,700
| +22% | +$2.04M |
|
3387
POET Technologies
POET
$1.65B
| $11M | ﹤0.01% |
1,066,398
-1,463,436
| -58% | -$15.9M |
|
3388
Cabaletta Bio
CABA
$466M
| $11M | ﹤0.01% |
+3,522,112
| New | +$11.6M |
|
3389
Fastly Inc
FSLY
$4.77B
| $10.9M | ﹤0.01% |
596,285
+135,971
| +30% | +$2.95M |
|
3390
CALL
Vanguard Health Care ETF
VHT
$18.9B
| $10.9M | ﹤0.01% |
36,600
+25,500
| +230% | +$7.09M |
|
3391
PUT
CRH
CRH
$64.6B
| $10.9M | ﹤0.01% |
102,200
-2,300
| -2% | -$253K |
|
3392
Par Pacific Holdings
PARR
$4.02B
| $10.9M | ﹤0.01% |
194,757
-526,900
| -73% | -$31.4M |
|
|
BLSH
3393
CALL
Bullish
BLSH
$3.7B
| $10.9M | ﹤0.01% |
465,200
-129,900
| -22% | -$4.52M |
|
3394
SFL Corp
SFL
$1.64B
| $10.9M | ﹤0.01% |
1,068,091
-433,882
| -29% | -$4.92M |
|
3395
CALL
Fidelity National Information Services
FIS
$22.1B
| $10.9M | ﹤0.01% |
280,100
-104,800
| -27% | -$4.53M |
|
3396
PUT
CACI
CACI
$14.8B
| $10.9M | ﹤0.01% |
23,500
-2,100
| -8% | -$1.07M |
|
|
MICC
3397
The Magnum Ice Cream Company N.V.
MICC
$12B
| $10.9M | ﹤0.01% |
625,139
+607,341
| +3,412% | +$9.45M |
|
3398
State Street SPDR Bloomberg High Yield Bond ETF
JNK
$7.32B
| $10.9M | ﹤0.01% |
+112,735
| New | +$10.9M |
|
3399
G-III Apparel Group
GIII
$1.43B
| $10.8M | ﹤0.01% |
321,801
-39,345
| -11% | -$1.24M |
|
3400
AGNC Investment
AGNC
$13B
| $10.8M | ﹤0.01% |
994,234
-1,571,851
| -61% | -$16.6M |
|
Similar funds
Ken Griffin's Q2 2026 Portfolio in Review
As of Q2 2026, Ken Griffin held 15,447 positions worth $875B, up 41% from $618B the previous quarter. Its ten largest holdings account for 23% of the portfolio.
Ken Griffin deployed $103B of net new capital in Q2 2026, opening 2,575 new positions and adding to 6,089 existing holdings. Its largest new stake was SpaceX: 5,129,884 shares worth $876M.
By sector, the portfolio is most concentrated in Technology at 3.9% of assets, down from 4.5% a quarter earlier, followed by Healthcare and Industrials.
On the sell side, the largest reduction was Micron Technology, an estimated $3B trimmed.
- Ken Griffin's largest Q2 2026 buy was SpaceX: 5,129,884 shares worth $876M.
- Ken Griffin added most to iShares Core S&P 500 ETF in Q2 2026, an estimated $9.91B increase.
- Ken Griffin's biggest Q2 2026 reduction was Micron Technology, cutting an estimated $3B.
- Ken Griffin fully exited iShares 7-10 Year Treasury Bond ETF in Q2 2026, selling an estimated $325M.
- Ken Griffin's ten largest holdings make up 23% of its $875B portfolio in Q2 2026.
- Ken Griffin opened 2,575 new positions and closed 1,872 in Q2 2026.
- Ken Griffin's portfolio value rose 41% quarter-over-quarter to $875B.
Based on Citadel Advisors's 13F filing for Q2 2026, filed 14 Aug 2026.